Final answer:
The statement suggesting that motility, mucinase, and urease are key virulence factors for H. pylori is true. These factors enable the bacteria to invade the stomach lining, neutralize stomach acid, and contribute to ulcer formation.
Step-by-step explanation:
The statement that motility and the production of mucinase and urease are virulence determinants for H. pylori is true. H. pylori is known for its ability to survive in the acidic environment of the stomach. It uses its flagella to move through the mucin layer of the stomach epithelium, which is the first step in its colonization process. Moreover, H. pylori produces urease, an enzyme that converts urea into ammonia, helping to neutralize stomach acid and creating a more favorable environment for the bacteria. This action also stimulates an immune response from the host. Additionally, H. pylori secretes enzymes like mucinase, which degrade the mucus lining, allowing the bacteria to come in closer contact with the epithelial cells, ultimately leading to gastritis and ulcer formation as reported in various studies.